The Heil Pro Set Plus ic is a dual mic element headset designed for ICOM transceivers. It includes the HC-5 key element for articulate speech audio that is great for everyday ragchewing and traffic handling. And it includes the HC-4 DX Dream Machine element designed to help you cut threw pile ups. The Heil Pro Set Plus is destined to be the new benchmark competition headset for DX and contest operators worldwide. Please note that this headset is designed exclusively for ICOM transceivers and should not be used for other brands. The Heil Pro Set Plus iccomes with the special AD-1-ic cable adapter that terminates to an ICOM 8 pin mic plug.